<template>
	<div class="list">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{this.city}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			<div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list">
					<div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id" @click="handleCityClick(innerItem.name)">
						{{innerItem.name}}
					</div>
				</div>
			</div>
		</div>
	</div>
</template>
<script>
import { mapState, mapMutations } from 'vuex'
import Bscroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll('.list')
  },
  methods: {
    handleCityClick (city) {
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  watch: {
    letter () {
      const element = this.$refs[this.letter][0]
      this.scroll.scrollToElement(element)
    }
  },
  computed: {
    ...mapState(['city'])
  }
}
</script>
<style lang="stylus" scoped>
.border-topbottom
	&:before
		border-color #ccc
	&:after
		border-color #ccc
.list
	position absolute
	left 0
	right 0
	top 1.58rem
	overflow hidden
	bottom 0
	.title
		line-height 0.54rem
		background #eee
		padding-left 0.2rem
		color #666
		font-size 0.26rem
	.button-list
		overflow hidden
		padding 0.1rem 0.6rem 0.1rem 0.1rem
		.button-wrapper
			width 33.33%
			float left
			.button
				text-align center
				margin 0.1rem
				border 0.02rem solid #ccc
				padding 0.1rem 0
				border-radius 0.06rem
	.item-list
		.item
			line-height 0.76rem
			padding-left 0.2rem
			.border-bottom
				&:before
					border-color #ccc
</style>
